Electronic structures of well-aligned Er-doped ZnO nanorod arrays

Cheng Ying Chen, Kun Yu Lai, Jian Wei Lo, Chin An Lin, Shu Hsien Chiu, Yen Chun Chao, Jr Hau He*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Electronic structures of well-aligned Er-doped ZnO (ZnO:Er) nanorod arrays (NRAs) synthesized by a solution-based hydrothermal process were characterized by high-resolution transmission electron microscopy (HRTEM) and X-ray absorption fine structure (XAFS). HRTEM and angular dependent X-ray absorption near-edge structure analysis at O K and Zn L 3 edges indicates that the spontaneous polarization is along the [0001] direction. The analysis of Er L 3-edge XAFS demonstrates that the local structure around Er in the ZnO:Er NRAs was transformed from O n to C 4v after annealing

Original languageEnglish (US)
Pages (from-to)10615-10619
Number of pages5
JournalJournal of nanoscience and nanotechnology
Issue number12
StatePublished - 2011
Externally publishedYes


  • Er-doped ZnO
  • Infrared emission
  • Nanorod arrays
  • Optical activation
  • XAFS

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics


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